CVE-2020-36731

Summary

The Flexible Checkout Fields for WooCommerce plugin for WordPress is vulnerable to Unauthenticated Arbitrary Plugin Settings update, in addition to Stored Cross-Site Scripting in versions up to, and including, 2.3.1. This is due to missing authorization checks on the updateSettingsAction() function which is called via an admin_init hook, along with missing sanitization and escaping on the settings that are stored.

Affected Software

Weaknesses

• CWE-79: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ADP Enrichment

CVE Program Container

Additional References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/fd12a952-2e99-41f7-b74c-55c2b7d8deed?source=cve
• https://blog.nintechnet.com/zero-day-vulnerability-fixed-in-wordpress-flexible-checkout-fields-for-woocommerce-plugin/
• https://www.wordfence.com/blog/2020/02/site-takeover-campaign-exploits-multiple-zero-day-vulnerabilities/

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/fd12a952-2e99-41f7-b74c-55c2b7d8deed?source=cve
• https://blog.nintechnet.com/zero-day-vulnerability-fixed-in-wordpress-flexible-checkout-fields-for-woocommerce-plugin/
• https://www.wordfence.com/blog/2020/02/site-takeover-campaign-exploits-multiple-zero-day-vulnerabilities/

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